What is Backward compatibility in .Net

   What is Backward compatibility

 

Backward compatibility means that an app that was developed for a particular version of a platform will run on later versions of that platform. The .NET Framework tries to maximize backward compatibility: Source code written for one version of the .NET Framework should compile on later versions of the .NET Framework, and binaries that run on one version of the .NET Framework should behave identically on later versions of the .NET Framework

 

The .NET Framework 4.5 and its point releases are backward-compatible with apps that were built with earlier versions of the .NET Framework. In other words, apps and components built with previous versions will work without modification on the .NET Framework 4.5. However, by default, apps run on the version of the common language runtime for which they were developed, so you may have to provide a configuration file to enable your app to run on the .NET Framework 4.5. For more information

      

ü  Note that the .NET Framework 4.5 is not supported on Windows XP.

ü  .net 4.5 comes automatically with windows 8

ü  .net 3.5 sp1 comes automatically with windows 7 sp1

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